I20

Angina pectoris

Non-billable header

I20 is a non-billable header code. Use one of the more specific codes below.

Excludes1

Not coded here — never report together with this code.

  • angina pectoris with atherosclerotic heart disease of native coronary arteries (I25.1-)
  • atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris (I25.7-)
  • postinfarction angina (I23.7)

Excludes2

Not included here — may be reported together when both conditions exist.

  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)

Use additional code

Add a code to identify the following, if applicable.

  • code to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

Code also

An additional code may be needed.

  • the presence of hypertension (I10-I1A)

More specific codes I20

  • I20.0Unstable anginaBillable
  • I20.1Angina pectoris with documented spasmBillable
  • I20.2Refractory angina pectorisBillable
  • I20.8Other forms of angina pectorisHeader
  • I20.9Angina pectoris, unspecifiedBillable

Related codes

  • I21Acute myocardial infarctionHeader
  • I22Subsequent ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarctionHeader
  • I23Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period)Header
  • I24Other acute ischemic heart diseasesHeader
  • I25Chronic ischemic heart diseaseHeader

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